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    • 10. 发明申请
    • ZINC-BASED PLATED STEEL SHEET EXCELLENT IN SURFACE ELECTRICAL CONDUCTIVITY HAVING PRIMARY RUST PREVENTIVE THIN FILM LAYER
    • 基于ZINC的镀层钢板表面电导率优于主要防腐薄膜层
    • US20110027611A1
    • 2011-02-03
    • US12735628
    • 2008-02-15
    • Akira TakahashiAtsushi Morishita
    • Akira TakahashiAtsushi Morishita
    • B32B15/04B05D3/00C25D5/00B82Y30/00
    • C23C2/26C25D5/48Y10T428/12472Y10T428/12535Y10T428/12799Y10T428/12993
    • A zinc or zinc alloy plated steel sheet expressing a performance provided with both corrosion resistance and surface conductivity is provided. The zinc or zinc alloy plated steel sheet of the present invention is a zinc or zinc alloy plated steel sheet having an arithmetic average roughness Ra of a zinc-plated layer surface defined by JIS B 0601, obtained by a stylus-type surface roughness meter defined by JIS B 0651, of 0.3 μm to 2.0 μm and a maximum peak height Rp of 4.0 μm to 20.0 μm, wherein the arithmetic average roughness Ra (peak) obtained by measuring a range of evaluation length of 20 μm of peak parts of 80% or more of the Rp by an electron beam 3D roughness analyzer is 70% or more of the arithmetic average roughness Ra (average) obtained by measuring a range of evaluation length of 20 μm of parts of a height of ±20% about an average line, obtained by a stylus-type surface roughness meter, by an electron beam 3D roughness analyzer.
    • 提供了表现出具有耐腐蚀性和表面电导率的性能的锌或锌合金镀覆钢板。 本发明的锌或锌合金镀覆钢板是由JIS B 0601规定的镀锌层表面的算术平均粗糙度Ra为规定的触针式表面粗糙度计得到的锌或锌合金镀覆钢板 通过JIS B 0651为0.3μm〜2.0μm,最大峰高Rp为4.0μm〜20.0μm,其中通过测定峰值部分的评价长度的范围为80%而得到的算术平均粗糙度Ra(峰值) 通过电子束3D粗糙度分析器的Rp以上的算术平均粗糙度Ra(平均值)为70%以上,通过将平均线的高度为±20%的部分的评价长度的范围测定为20μm ,由电子束3D粗糙度分析仪由触针式表面粗糙度仪获得。